(a) General. Tolerances are established for residues of the plant growth regulator, trinexapac-ethyl, including its metabolites and degradates, in or on the commodities in table 1 to this paragraph (a). Compliance with the tolerance levels specified in table 1 is to be determined by measuring only the free and conjugated forms of both trinexapac-ethyl, ethyl 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylate and trinexapac, 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylic acid, calculated as the stoichiometric equivalent of trinexapac-ethyl, in or on the commodity.
| Commodity
| Parts per
million
|
|---|
| Barley, bran | 2.5
|
| Barley, grain | 2.0
|
| Barley, hay | 0.8
|
| Barley, straw | 0.4
|
| Cattle, fat | 0.03
|
| Cattle, meat | 0.03
|
| Cattle, meat byproducts | 0.1
|
| Egg | 0.01
|
| Goat, fat | 0.03
|
| Goat, meat | 0.03
|
| Goat, meat byproducts | 0.1
|
| Grass, forage | 1.5
|
| Grass, hay | 4.0
|
| Grass, seed screenings | 40.0
|
| Grass, straw | 10.0
|
| Hog, fat | 0.02
|
| Hog, meat | 0.02
|
| Hog, meat by-products | 0.1
|
| Horse, fat | 0.02
|
| Horse, meat | 0.03
|
| Horse, meat byproducts | 0.04
|
| Milk | 0.01
|
| Oat, forage | 1.0
|
| Oat, grain | 4.0
|
| Oat, hay | 1.5
|
| Oat, straw | 0.9
|
| Poppy, seed
1 | 8
|
| Poultry, fat | 0.01
|
| Poultry, meat | 0.01
|
| Poultry, meat byproducts | 0.1
|
| Rice, bran | 1.5
|
| Rice, grain | 0.4
|
| Rice, straw | 0.07
|
| Rice, wild, grain | 0.4
|
| Rye, bran | 6.0
|
| Rye, grain | 4.0
|
| Rye, hay | 1.5
|
| Rye, straw | 0.9
|
| Sheep, fat | 0.03
|
| Sheep, meat | 0.03
|
| Sheep, meat byproducts | 0.1
|
| Sugarcane, cane | 1.5
|
| Sugarcane, molasses | 5
|
| Wheat, bran | 6.0
|
| Wheat, forage | 1.0
|
| Wheat, grain | 4.0
|
| Wheat, hay | 1.5
|
| Wheat, middlings | 10.5
|
| Wheat, straw | 0.9
|
(b) [Reserved]
(c) Tolerances with regional registrations. Tolerances with regional registrations, as defined in § 180.1, are established for residues of trinexapac-ethyl, including its metabolites and degradates, in or on the commodities in table 2 to this paragraph (c). Compliance with the tolerance levels specified in table 2 is to be determined by measuring only the free and conjugated forms of both trinexapac-ethyl, ethyl 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylate and trinexapac, 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylic acid, calculated as the stoichiometric equivalent of trinexapac-ethyl, in or on the commodity.
| Commodity
| Parts per
million
|
|---|
| Clover, forage | 8
|
| Clover, hay | 15 |
(d) [Reserved]
[88 FR 18434, Mar. 29, 2023]